0.24.0

Eliminate dead code

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    foreman (0.22.0)
+    foreman (0.24.0)
       term-ansicolor (~> 1.0.5)
       thor (>= 0.13.6)
 

data/example/Procfile

@@ -1,2 +1,2 @@
 ticker: ruby ./ticker $PORT
-error : ruby ./error
+error:  ruby ./error

data/export/bluepill/master.pill.erb

@@ -3,7 +3,7 @@ Bluepill.application("<%= app %>", :foreground => false, :log_file => "/var/log/
   app.uid = "<%= user %>"
   app.gid = "<%= user %>"
 
-<% engine.processes.values.each do |process| %>
+<% engine.processes.each do |process| %>
 <% 1.upto(concurrency[process.name]) do |num| %>
 <% port = engine.port_for(process, num, options[:port]) %>
   app.process("<%= process.name %>-<%=num%>") do |process|
@@ -24,4 +24,4 @@ Bluepill.application("<%= app %>", :foreground => false, :log_file => "/var/log/
   end
 <% end %>
 <% end %>
-end
+end

lib/foreman/cli.rb

@@ -53,9 +53,8 @@ class Foreman::CLI < Thor
   desc "check", "Validate your application's Procfile"
 
   def check
-    processes = engine.processes_in_order.map { |p| p.first }
-    error "no processes defined" unless processes.length > 0
-    display "valid procfile detected (#{processes.join(', ')})"
+    error "no processes defined" unless engine.processes.length > 0
+    display "valid procfile detected (#{engine.processes.map(&:name).join(', ')})"
   end
 
 private ######################################################################

lib/foreman/engine.rb

@@ -1,5 +1,6 @@
 require "foreman"
 require "foreman/process"
+require "foreman/procfile"
 require "foreman/utils"
 require "pty"
 require "tempfile"
@@ -19,45 +20,17 @@ class Foreman::Engine
   COLORS = [ cyan, yellow, green, magenta, red ]
 
   def initialize(procfile, options={})
-    @procfile  = read_procfile(procfile)
+    @procfile  = Foreman::Procfile.new(procfile)
     @directory = File.expand_path(File.dirname(procfile))
     @options = options
-    @environment = read_environment(options[:env])
-  end
-
-  def processes
-    @processes ||= begin
-      @order = []
-      procfile.split("\n").inject({}) do |hash, line|
-        next hash if line.strip == ""
-        name, command = line.split(/\s*:\s+/, 2)
-        unless command
-          warn_deprecated_procfile!
-          name, command = line.split(/ +/, 2)
-        end
-        process = Foreman::Process.new(name, command)
-        process.color = next_color
-        @order << process.name
-        hash.update(process.name => process)
-      end
-    end
-  end
-
-  def process_order
-    processes
-    @order.uniq
-  end
-
-  def processes_in_order
-    process_order.map do |name|
-      [name, processes[name]]
-    end
+    @environment = read_environment_files(options[:env])
   end
 
   def start
     proctitle "ruby: foreman master"
 
-    processes_in_order.each do |name, process|
+    processes.each do |process|
+      process.color = next_color
       fork process
     end
 
@@ -68,8 +41,7 @@ class Foreman::Engine
   end
 
   def execute(name)
-
-    fork processes[name]
+    fork procfile[name]
 
     trap("TERM") { puts "SIGTERM received"; terminate_gracefully }
     trap("INT")  { puts "SIGINT received";  terminate_gracefully }
@@ -77,9 +49,13 @@ class Foreman::Engine
     watch_for_termination
   end
 
+  def processes
+    procfile.processes
+  end
+
   def port_for(process, num, base_port=nil)
     base_port ||= 5000
-    offset = processes_in_order.map { |p| p.first }.index(process.name) * 100
+    offset = procfile.process_names.index(process.name) * 100
     base_port.to_i + offset + num - 1
   end
 
@@ -134,6 +110,24 @@ private ######################################################################
     end
   end
 
+  def terminate_gracefully
+    info "sending SIGTERM to all processes"
+    kill_all "SIGTERM"
+    Timeout.timeout(3) { Process.waitall }
+  rescue Timeout::Error
+    info "sending SIGKILL to all processes"
+    kill_all "SIGKILL"
+  end
+
+  def watch_for_termination
+    pid, status = Process.wait2
+    process = running_processes.delete(pid)
+    info "process terminated", process
+    terminate_gracefully
+    kill_all
+  rescue Errno::ECHILD
+  end
+
   def info(message, process=nil)
     print process.color if process
     print "#{Time.now.strftime("%H:%M:%S")} #{pad_process_name(process)} | "
@@ -149,7 +143,7 @@ private ######################################################################
 
   def longest_process_name
     @longest_process_name ||= begin
-      longest = processes.keys.map { |name| name.length }.sort.last
+      longest = procfile.process_names.map { |name| name.length }.sort.last
       longest = 6 if longest < 6 # system
       longest
     end
@@ -160,30 +154,10 @@ private ######################################################################
     name.ljust(longest_process_name + 3) # add 3 for process number padding
   end
 
-  def print_info
-    info "currently running processes:"
-    running_processes.each do |pid, process|
-      info "pid #{pid}", process
-    end
-  end
-
   def proctitle(title)
     $0 = title
   end
 
-  def read_procfile(procfile)
-    File.read(procfile)
-  end
-
-  def watch_for_termination
-    pid, status = Process.wait2
-    process = running_processes.delete(pid)
-    info "process terminated", process
-    terminate_gracefully
-    kill_all
-  rescue Errno::ECHILD
-  end
-
   def running_processes
     @running_processes ||= {}
   end
@@ -194,41 +168,27 @@ private ######################################################################
     @current_color >= COLORS.length ? "" : COLORS[@current_color]
   end
 
-  def warn_deprecated_procfile!
-    return if @already_warned_deprecated
-    @already_warned_deprecated = true
-    puts "!!! This format of Procfile is deprecated, and will not work starting in v0.12"
-    puts "!!! Use a colon to separate the process name from the command"
-    puts "!!! e.g.   web: thin start"
-  end
-
-  def read_environment(filename)
-    error "No such file: #{filename}" if filename && !File.exists?(filename)
-    filename ||= ".env"
+  def read_environment_files(filenames)
     environment = {}
 
-    if File.exists?(filename)
-      File.read(filename).split("\n").each do |line|
-        if line =~ /\A([A-Za-z_]+)=(.*)\z/
-          environment[$1] = $2
-        end
-      end
+    (filenames || "").split(",").map(&:strip).each do |filename|
+      error "No such file: #{filename}" unless File.exists?(filename)
+      environment.merge!(read_environment(filename))
     end
 
+    environment.merge!(read_environment(".env")) unless filenames
     environment
   end
 
-  def runner
-    File.expand_path("../../../bin/foreman-runner", __FILE__)
-  end
+  def read_environment(filename)
+    return {} unless File.exists?(filename)
 
-  def terminate_gracefully
-    info "sending SIGTERM to all processes"
-    kill_all "SIGTERM"
-    Timeout.timeout(3) { Process.waitall }
-  rescue Timeout::Error
-    info "sending SIGKILL to all processes"
-    kill_all "SIGKILL"
+    File.read(filename).split("\n").inject({}) do |hash, line|
+      if line =~ /\A([A-Za-z_]+)=(.*)\z/
+        hash[$1] = $2
+      end
+      hash
+    end
   end
 
 end

lib/foreman/export/upstart.rb

@@ -26,7 +26,7 @@ class Foreman::Export::Upstart < Foreman::Export::Base
 
     process_template = export_template("upstart", "process.conf.erb", template_root)
 
-    engine.processes.values.each do |process|
+    engine.processes.each do |process|
       process_master_template = export_template("upstart", "process_master.conf.erb", template_root)
       process_master_config   = ERB.new(process_master_template).result(binding)
       write_file "#{location}/#{app}-#{process.name}.conf", process_master_config

lib/foreman/procfile.rb

@@ -0,0 +1,37 @@
+require "foreman"
+
+# A valid Procfile entry is captured by this regex.
+# All other lines are ignored.
+#
+# /^([A-Za-z0-9_]+):\s*(.+)$/
+#
+# $1 = name
+# $2 = command
+#
+class Foreman::Procfile
+
+  attr_reader :processes
+
+  def initialize(filename)
+    @processes = parse_procfile(filename)
+  end
+
+  def process_names
+    processes.map(&:name)
+  end
+
+  def [](name)
+    processes.detect { |process| process.name == name }
+  end
+
+private
+
+  def parse_procfile(filename)
+    File.read(filename).split("\n").map do |line|
+      if line =~ /^([A-Za-z0-9_]+):\s*(.+)$/
+        Foreman::Process.new($1, $2)
+      end
+    end.compact
+  end
+
+end

lib/foreman/version.rb

@@ -1,5 +1,5 @@
 module Foreman
 
-  VERSION = "0.22.0"
+  VERSION = "0.24.0"
 
 end

man/foreman.1

@@ -1,7 +1,7 @@
 .\" generated with Ronn/v0.7.3
 .\" http://github.com/rtomayko/ronn/tree/0.7.3
 .
-.TH "FOREMAN" "1" "September 2011" "Foreman 0.21.0" "Foreman Manual"
+.TH "FOREMAN" "1" "September 2011" "Foreman 0.23.0" "Foreman Manual"
 .
 .SH "NAME"
 \fBforeman\fR \- manage Procfile\-based applications
@@ -69,7 +69,7 @@ These options control all modes of foreman\'s operation\.
 .
 .TP
 \fB\-e\fR, \fB\-\-env\fR
-Specify an alternate environment file\.
+Specify an alternate environment file\. You can specify more than one file by using: \fB\-\-env file1,file2\fR\.
 .
 .TP
 \fB\-f\fR, \fB\-\-procfile\fR
@@ -165,7 +165,7 @@ If a \fB\.foreman\fR file exists in the current directory, default options will
 .
 .nf
 
-concurrency: alpha=0
+concurrency: alpha=0,bravo=1
 port: 15000
 .
 .fi

man/foreman.1.ronn

@@ -67,7 +67,8 @@ The following options control how the application is run:
 These options control all modes of foreman's operation.
 
   * `-e`, `--env`:
-    Specify an alternate environment file.
+    Specify an alternate environment file. You can specify more than one
+    file by using: `--env file1,file2`.
 
   * `-f`, `--procfile`:
     Specify an alternate location for the application's Procfile. This file's
@@ -131,7 +132,7 @@ If a `.foreman` file exists in the current directory, default options will
 be read from it. This file should be in YAML format with the long option
 name as keys. Example:
 
-    concurrency: alpha=0
+    concurrency: alpha=0,bravo=1
     port: 15000
 
 ## EXAMPLES

spec/foreman/engine_spec.rb

@@ -15,21 +15,8 @@ describe "Foreman::Engine" do
       before { write_procfile }
 
       it "reads the processes" do
-        subject.processes["alpha"].command.should == "./alpha"
-        subject.processes["bravo"].command.should == "./bravo"
-      end
-    end
-
-    describe "with a deprecated Procfile" do
-      before do
-        File.open("Procfile", "w") do |file|
-          file.puts "name command"
-        end
-      end
-
-      it "should print a deprecation warning" do
-        mock(subject).warn_deprecated_procfile!
-        subject.processes.length.should == 1
+        subject.procfile["alpha"].command.should == "./alpha"
+        subject.procfile["bravo"].command.should == "./bravo"
       end
     end
   end
@@ -37,8 +24,8 @@ describe "Foreman::Engine" do
   describe "start" do
     it "forks the processes" do
       write_procfile
-      mock(subject).fork(subject.processes["alpha"])
-      mock(subject).fork(subject.processes["bravo"])
+      mock(subject).fork(subject.procfile["alpha"])
+      mock(subject).fork(subject.procfile["bravo"])
       mock(subject).watch_for_termination
       subject.start
     end
@@ -46,9 +33,9 @@ describe "Foreman::Engine" do
     it "handles concurrency" do
       write_procfile
       engine = Foreman::Engine.new("Procfile",:concurrency => "alpha=2")
-      mock(engine).fork_individual(engine.processes["alpha"], 1, 5000)
-      mock(engine).fork_individual(engine.processes["alpha"], 2, 5001)
-      mock(engine).fork_individual(engine.processes["bravo"], 1, 5100)
+      mock(engine).fork_individual(engine.procfile["alpha"], 1, 5000)
+      mock(engine).fork_individual(engine.procfile["alpha"], 2, 5001)
+      mock(engine).fork_individual(engine.procfile["bravo"], 1, 5100)
       mock(engine).watch_for_termination
       engine.start
     end
@@ -57,14 +44,13 @@ describe "Foreman::Engine" do
   describe "execute" do
     it "runs the processes" do
       write_procfile
-      mock(subject).fork(subject.processes["alpha"])
+      mock(subject).fork(subject.procfile["alpha"])
       mock(subject).watch_for_termination
       subject.execute("alpha")
     end
   end
 
   describe "environment" do
-
     before(:each) do
       write_procfile
       stub(Process).fork
@@ -79,6 +65,16 @@ describe "Foreman::Engine" do
       engine.execute("alpha")
     end
 
+    it "should read more than one if specified" do
+      File.open("/tmp/env1", "w") { |f| f.puts("FOO=bar") }
+      File.open("/tmp/env2", "w") { |f| f.puts("BAZ=qux") }
+      engine = Foreman::Engine.new("Procfile", :env => "/tmp/env1,/tmp/env2")
+      stub(engine).info
+      mock(engine).watch_for_termination
+      engine.environment.should == { "FOO"=>"bar", "BAZ"=>"qux" }
+      engine.execute("alpha")
+    end
+
     it "should fail if specified and doesnt exist" do
       mock.instance_of(Foreman::Engine).error("No such file: /tmp/env")
       engine = Foreman::Engine.new("Procfile", :env => "/tmp/env")